|This article is about an older version of DF.|
When a noble makes a demand, you will have about a month and a half to fulfill it. Demands are always for furniture, and can be for either furniture of a certain type (like a table) or furniture of a certain material (like copper items). Sometimes they specify both, for example "green glass window in dining room". It can happen that the demand will read "item in room" - this is due to a bug and the demand then cannot be fulfilled.
Demands are announced at the bottom of the screen, but if you miss the message, you can see if a noble is demanding anything on the nobles screen. If the uppercase bracketed word '[DEMAND]' next to a noble's name is gray, he is making no demands. If white, his current demands have been fulfilled or surpassed. If brown (or yellow when highlighted) the noble has stated their demand and has given you time to complete it. If red, the demanded is expected to have been completed already.
Fulfilling the demand gives the noble a happy thought. If a demand goes without being fulfilled, the noble will get an unhappy thought about the state of demands, increasing in severity if multiple demands go ignored at once. There are no other direct consequences to failing to fill a demand. After about 3 years, an announcement will be made that the noble has simply "forgotten" the demand.
Demands should not be confused with mandates.
Due to a bug, a demand's age is not properly initialized to zero upon creation, so the 42 day grace period may be shortened (or skipped entirely) or the demand may simply be forgotten the instant it is made.